Sounds like it could be a tune issue. Perhaps the car gets rich and stalls out.
Do you have a fuel pressure gauge?
My '92 would do that but I had a vacuum leak under the upper plenum. Fucker cammed like hell at idle. It was great. Just had to feather the gas a little when stopping.
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SOLD 6-17-06
'01 Silver Cobra #2709
Procharger P1SC w/10# pulley, 3 core IC, Bassani OR X, Steeda catback, 42# injectors, Lightning 80mm MAF, Tri-Ax, Fat Knob, Battery in da' trunk, JMS Tune 432rwhp / 390rwtq 12.54 @ 115 on street radials
SOLD 6-13-03
'98 Laser Red Cobra #634 of 5174
UPR Power Pipe, BBK off-road H, Flowmasters, 4.10 gears, battery relocated to da' trunk, rear seat delete, Cobra R 17x9 rims with Nitto 315's out back, shaved door locks, 13.35 @105